This might be a long shot, but I am dealing with the following dimensions for Canadian airlines for personal item.
15 cm x 33 cm x 43 cm (6 in x 13 in x 17 in)
I need a back pack that can accommodate a 17" external monitor with the following dimensions : Monitor 39.4 x 24.2 x 0.9 cm = 15.5 x 9.5 x 0.3
It also needs to accommodate a Dell 14" laptop, (the laptop is pretty thin so I don't think that'd be a problem).
Bonus if it has two water bottle holder pockets, luggage passthrough and some space for a blanket I use on flights.
Thanks
I have done something similar recently, stay in Centro Cancún, the host I stayed with had great internet, fully stocked fridge and was extremely helpful. Location was ideal and in close proximity to bus stops and Walmart. Dm me and I can send the link to the listing. I believe it was around 80 bucks a night.